Ventilator



May ll, 1937. H. ARMSTRONG VENTILATOR y Filed July 21, 193

2 Sheets-Sheet l nvenor .fyqlv/eravjrwsfraa Attorneys May 1l, 1937.

H. ARMSTRONG VENTILATOR Filed July 2l. 1936 2 sheets-s116352 l Iawra rmslro Invenor By @Amm Patented May l1, 1937 UNITED STATES PATENT ori-ICE 2 Claims.

This invention appertains to new and useful improvements in ventilators.

The principal object of the present invention is to provide a ventilator for windows of the type having vertically slidable sashes.

Another important object of the invention is to provide a ventilator which can be easily placed in position between the sill of the window and a sash so that it will retain itself against accidental displacement.

Another important object of the invention is to provide a ventilator of the character stated which while permitting good ventilation will not permit water or other foreign matter to enter into a building through the same.

These and various other important objects and advantages of the invention will become apparent to the reader of the following specification.

In the drawings:-

Figure 1 represents a fragmentary inside elevational view of the ventilators installed in a window.

Figure 2 is a fragmentary front elevational view of the ventilator installed in a window.

Figure 3 is a fragmentary vertical sectional view taken substantially on the line 3-3 of Figure 2.

Figure 4 is a'fragmentary horizontal sectional View.

Figure 5 is a fragmentary perspective view of the ventilator.

Figure 6 is a fragmentary horizontal sectional view on the line 6-6 of Figure 2.

Referring to the drawings wherein like numerals designate like parts, it can be seen in the drawings that numeral 5 represents the sill of a window generally referred to by numeral 6 which is provided with the lower sash guard-way l in which the sash 8 is operative.

Numeral 9 generally refers to the ventilator which consists of the elongated substantially rectangular-shaped plate I to the upper edge portion of which the downturned flange II of the shelf-like plate I2 attaches by rivets or spotwelding. The outer edge portion of this shelf l2 is provided with an upturned ange I3 and between this and the opposed upper edge portion of the plate Ill the lower rear portion of the sash 8 is disposed as shown in Figure 3.

The plate I0 is provided with the rectangular- (C1. SiS-99) shaped Ventilating opening I4, which is struck out so as to provide the lip I which is disposed outwardly in an outwardly declining position. Outwardly extending rightangular shaped side walls Iii- LIS are provided at the ends of the opening I4 for supporting the end portions of the inclined hood l1 which hood is riveted or otherwise secured as at I8 to the plate I0 above the opening I4. The lower portion of the hood Il is bent inwardly as at I9 terminating in outwardly spaced 10 relation from the plate I0. Thus a tortuous passageway following the line of the arrows is afforded for indirect drafts.

The lower edge portion of the plate I0 abuts the shoulder 2| of the sill, while the upper edge 15 portion of the plate I0 engages between the lower rail of the sash 8 and the frame strip 22. See Figure 3.)

While the foregoing specification sets forth the invention in specific terms it is to be understood that numerous changes in the shape, size and ma- 20 terials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having thus described the invention, what is claimed is:-

l. A ventilator of the character described comprising a rectangular shaped plate having an opening therein, said opening being formed by stamping the plate to provide an outstanding substantially horizontally disposed lip at the lower edge of the opening, a hood secured to the outside of the plate above the opening so as to depend to a point below the lip, the lower portion of the hood being provided with a backwardly inclined portion spacedly underlying the said lip.

2. A ventilator of the character described comprising a. rectangular-shaped plate provided with an opening therein, a hood secured to the outside of the plate above the opening and disposed so as to depend to a point below the lower edge of the opening, the lower portion of the hood being provided with a backwardly inclined portion, and an outstanding inclined lip on the plate at the lower edge portion of the opening, inclining toward the backwardly bent portion of the hood and terminating in spaced relation with respect thereto.

HOWARD ARMSTRONG. 

